%0 Journal Article
%A P. A. Shaikhullina
%T About formal normal form of the semi-hyperbolic maps germs on the plane
%J The Bulletin of Irkutsk State University. Series Mathematics
%D 2021
%P 54-64
%V 38
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IIGUM_2021_38_a3/
%G ru
%F IIGUM_2021_38_a3